This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 5 |
| 2 | 70 |
| 3 | 285 |
| 4 | 740 |
| 5 | 1525 |
| 6 | 2730 |
| 7 | 4445 |
| 8 | 6760 |
| 9 | 9765 |
| 10 | 13550 |
| 11 | 18205 |
| 12 | 23820 |
| 13 | 30485 |
| 14 | 38290 |
| 15 | 47325 |
| 16 | 57680 |
| 17 | 69445 |
| 18 | 82710 |
| 19 | 97565 |
| 20 | 114100 |
| 21 | 132405 |
| 22 | 152570 |
| 23 | 174685 |
| 24 | 198840 |
| 25 | 225125 |
| 26 | 253630 |
| 27 | 284445 |
| 28 | 317660 |
| 29 | 353365 |
| 30 | 391650 |
| 31 | 432605 |
| 32 | 476320 |
| 33 | 522885 |
| 34 | 572390 |